Presents third installment of directory published in four parts in June and August issues of "Database" and July and September "Online." Description, company, compatibility, type of laserdisk, search and retrieval software, interface with magnetic media, conditions of usage, price, and status information are given for 11 products. Company names…

Describes five online databases that focus on computer products, primarily software and microcomputing hardware, and compares the databases in terms of record content, product coverage, vertical market coverage, currency, availability, and price. Sample records and searches are provided, as well as a directory of product databases. (CLB)